Wagon-brake



Nu. 6l5,l28. Patented Nov. 29, I898.

J. R. BARRON.

WAGON BRAKE.

(Application filed Aug. 20, 1897.) (No Model.)

mz: x I "H fa a E Swmwtoz UNITED STATES PATENT EEicE.

JAMES R. BARRON, OF BARROINVALE, PENNSYLVANIA.

WAGON-BRAKE.

SPECIFICATION forming part of Letters Patent No. 615,128, dated November29, 1898.

Application filed August 20, 1897. Serial No. 648,949. (No model.)

To all whom, it may cOnccPn:

Be it known that I, JAMES R. BARRON, residing at Barronvale, in thecounty of Somerset and State of Pennsylvania, have invented certain newand useful Improvements in Wagon-Brakes, of which the following is aspecification.

My invention relates to improvements in wagon-brakes; and it has for itsobject to provide a simple construction and arrangement of brakes onwagons by which when they are applied to the wheels the wheels will havea tendency to further apply the brakes, so that the momentum of thewagon and load will be used in braking.

My invention consists of a rock-shaft suitably j ournaled to therunning-gear at the rear part of the wagon and connected by a rod withthe brake-lever at the front part of the wagon, by which it is rocked toapply the brakes. The rock shaft has arms either formed integral orotherwise secured to it, the free ends of which are bent to formright-angle extensions which project over the rear wheels, and they eachhave journaled thereon a roller which as the shaft is rocked is broughtto bear upon the wheels. The rock-shaft is also provided with arms whichproject inwardly therefrom and engage the under side of the axle for thepurpose of limiting the backward movement of the brake-shoes.

My invention also consists of certain other details of novelconstruction, which will be hereinafter more fully described, andspecifically pointed out in the claims.

In order that my invention may be fully understood, I will proceed todescribe the same with reference to the accompanying drawings, in which-Figure 1 is a view of a wagon having my brake applied thereto. Fig. 2 isa detail bottom plan view of the rear part of the runninggear, showingthe rock-shaft journaled thereto. Fig. 3 is a detail perspective view ofthe rock-shaft and the brake-rollers applied thereto. Fig. 4c is also adetail perspective View and shows a modification in the form ofrockshaft, and Fig. 5 is a detail perspective View of the plate in whichthe rock-shaft is journaled. Fig. 6 is a detail longitudinal sectionalview.

In the said drawings, A represents the wagon-body, B the running-gearthereof, and G the rear axle, carrying the wheels 0, to which Ipreferably attach the brake-rollers. To the running-gear B and at therear end thereof I secure the plates E, having the sleeve E at the endthereof, in which the rock-shaft F is journaled. The rock-shaft, Fig. 3,has the rods or arms G secured to the ends thereof, and their free endsare bent at right angles, so as to have the ends project over thewheels. The brake-rollers II are journaled in these extensions. To oneof the rods G, I secure one end of the rod I, the other end of which isconnected with the brake-lever I, which is pivoted at the front of thewagonbody and operated in connection with the usual rack-segment andpawl.

J J are short arms secured or formed with the arms G. The arms J Jproject inwardly from rock-shaft F and engage the under side of the axlefor the purpose of limiting the backward movement of the brake-shoes.

As will be seen, the rock-shaft and rods are so arranged as to have therollers when applied bear upon the rear wheels at a point to the rear ofthe axle, so that when they are applied the rotary movement of the rearwheels will tend to force the arms forwardly, and in this manner themomentum of the load and of the wagon will be utilized to apply thebrakes.

In Fig. l I have shown a modification in the form of brake-armsemployed. In this form the rods or arms G are formed integral with therock-shaft and the rollers are jourat right angles, so as to throw therollers over the rear wheels.

what I claim as new, and desire to secure by Letters Patent, is

1. In a wagon-brake, the combination of a rock-shaft journaled at therear of the axle, brake-arms carried by said shaft, brake-shoes carriedby the arms and adapted to engage the levers, and arms carried by therock-shaft and adapted to engage the under side of the axle for thepurpose of limiting the backward movement of the brake-shoes,substantially as set forth.

2. In a wagon-brake, the combination of straps carried by therunning-gear at the rear naled on the ends of the arms, which are bentHaving thus fully described my invention,

end thereof, said straps having loops at their engage the rims of thewheels, and a rod eononter ends, a rock-shaft mounted in said nectingoneo'fsaid brake-armswith the brakeloops, brake-arms carried by therespective lever, substantially as set forth. ends of the rock-shaft,and extending at right JAMES R. BARRON.

5 angles thereto, said brake-arms having brack- Witnesses:

ets formed at their free ends, brake-rollers HATTIE MOORE, jonrnaled insaid brackets, and adapted to i GAY THOMAS.

